coster



(No Model.) 2 Sheets-Sheet 1. J. M. De GOSTER.

Drag Saw.

Patented Oct. 19,1880.

(No Model.)

2 Shebts-Sheet 2. J. M. De OOSTER.

Drag Saw.

Patented Oct. 19, I880.

MFETERS PHOTO-LITHOGRAPHEK WASHINGTON. D. Q

UNITED STATES PATENT OFFICE.

J ULES M. DE GOSTER, OF LA GRANGE, MISSOURI.

D RAG-SAW.

SPECIFICATION fox-mg part of Letters Patent No. 233,403, dated Qctober19, 1880.

Application filed March 18, 1880.

To all whom it may concern:

Be it known that I, JULEs M. DE OosTER, of La Grange, in the county ofLewis and State of Missouri, have invented certain new and usefulImprovements in Drag-Saws; and I do hereby declare that the following isa full, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame,

reference being had to the accompanying drawings, which form a part ofthis specification.

This invention relates to sawing-machines; and it consists in theimprovements in the construction of the same hereinafter fullydescribed, and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a side elevation of a machineembodying the improvements of my invention, and Fig.2 is a rearelevation of the machine. Fig. 3 is a side elevation, showing theworking parts of one side only.

The machine is intended to be used either as a single or doublemachinethat is, to make a single cut and be operated by one man, or toemploy two saws to make two cuts at one time and to be operated by twomen.

Referring by letter to the drawings, A designates the main frame,composed of beams B B,resting on sills O 0, having uprights D D andinclined braces E E connected thereto to support the operatingmechanism.

F designates aband-wheel secured to a shaft, G, journaled in boxescaupon the inclined braces E E, as shown. This shaft G is provided withcranks H H at its ends, to which are connected, by wrist-pins b b,pitmen I I, which lead to and are connected with oscillating treadles JJ, hinged to a cross-beam, K. Hand-levers L L are pivoted near theircenters to the pitmen I I, and are connected at their forward ends tohinged arms M M, hinged at their lower ends to the front sills of theframe A.

A fly-wheel, N, is secured to a shaft, 0, journaled in boxes P P,located on theinclined braces E E of the frame A, near their lower ends.The shaft 0 is. also provided with a small band-wheel, Q, fixed thereto,and along crank, It, and ashorter crank, S.

(No model.)

The front of the frame Ahas its uprights D D provided with guards T T,which form spaces in which the guides U U work. These guides U U areslotted at their rear ends, and the slots 0 0 formed therein receive andslide upon the ends of the shaft 0 between the inclined braces E E andthe inner faces of the cranks It and S when the machine is in operation.Pitmen V V extend from the cranks R and S to the forward ends of theguides U U, and the saws W W are secured between the ends of the guidesU U and the forward ends of the pitmen V V.

Upon one side of the frame A is pivoted to the beam B an arm, X, whichis provided with a knotted cord, Z, passing through a staple, Y, driveninto one of the inclined braces E, so that one portion of the staplenearest its rear end will be sufficiently narrow to hold the knots inthe cord when they have been drawn through the larger portion andpermitted to rest upon the upper face of the staple at its narrowerportion, the object of which is to elevate the guide and saw to thedesired angle and hold it there, and at the same time permit the guideto work in the shouldered upper end of the arm X.

To the side of the shaft 0 is connected, by the long crank R, the guideand pitman which carries the saw W, which is intended to make a longstroke for the purpose of cuttinglarge logs. The other saw may bedisconnected at this time and laid aside by simply removing thewrist-pin b, which connects the pitman V, from the short crank S. When,however, it is desired to cut four-foot stove-wood into three lengths,the large saw may be removed, and a saw similar to the saw S may beconnected to the crank B. When two men are to operate the device, theyoperate the treadles J J alternately.

The hand-levers I I are intended to steady the operator or operators, asthe case may be, and to enable him or them to pull the treadle intoposition to be again operated by the foot.

It is obvious that both of the guides U U may be provided with arms Xand knotted cords and staples for adjusting the saws.

Having thus fully described my invention, what I claim as new anduseful, and desire to secure by Letters Patent, is

In testimony that I claim the foregoing as myown Ihave hereto affixed mysignature in presence of two witnesses.

J ULES M. DE OOSTER.

Witnesses:

H. E. WILHELM, E. W. AYRES.

